Improvement in printers  quoins



W. UU A I L.

Printers uui'ns.4

. Patented Dec. 22,1874.

FIGA* u l IlIll u W1.. H n .l n n u n M WAITNESSES.

INVENTOF.

'UNITED STATES PATENT OFFICE.

WILLIAM QUAIL, OE BROOKLYN, NEw YORK.

IMPROVEMENT IN PRINTERS QUOINS.

Specification forming part of Letters Patent No. 158,00 l, dated December 22, 1874; appli catior l'ed December 4, 1874.

To all whom t may concern:

Be it known that I, WILLIAM QUAIL, of Brooklyn, Kings county, New York, have invented, made, and applied to use an Improved Printers Quoin, for use in locking up forms or types; and that the following is a full, clear, and correct description of the same, reference being had to the accompanying drawing making part of this specification, and to the letters Otl reference marked thereon, in which- Figure l is a view of the quoin extended or thrown out. Fig. 2 is a viewr of the quoin contracted or drawn in. Fig. 3 is a sectional view of the quoin, showing the interior construction ot the same.

In the drawing like parts of the invention are pointed out by the same letters of reference.

The nature ot' the present invention consists in the construction, as more fully hereinafter set forth, of an improved quoin for use by printers in locking up forms in a chase or upon a galley, the object of the invention being the construction of a quoin reliable in its operation, simple in'construction, and one that can be ati'orded at a loW cost.

To enablev those skilled in the arts to make and use my invention, I will describe its construction and operation.

The quoin is composed of two plates of metal, planed true upon their faces, and designated as A and B in the drawing. The plate A has inserted in it the `journals C, free to revolve in it, and projecting beyond the back of it, and upon these journals C are cut or secured the pinionsD, meshing into each other. rIhese journals are hollowed, and are provided one with a right-handed and -the other with a lefthanded screw-thread. The plate B has secured in it the uprights E, projecting from its face or front side, and threaded, so as to engage with the threads upon the hollowed journals G. Y

Such being the construction, the operation is as follows: The threaded uprights E are made smaller in diameter than the journals G, so that they will readily be received within them, and, having been inserted in them, the screwthreads upon them engage with the threads upon the interior of the journals, and, -by turning 011e of the journals C, the pinion D upon the same is revolved. As it revolves, and from the fact that it engages with or meshes into the pinion upon theother journal G, this is caused to revolve also; and, by the revolution of these pinionsand the journals O, the block A is thrown forward or drawn back, as required.

The quoin is intended to be placed in a chase or galley within or upon which type or a form has been received, the plate B bearing upon the side ot' the chase or galley, and the journals G are then turned byY turning one of them, as described, and thus turning the other journal, as alreadyT described, until the plate A is advanced and bears tightly against a side-stick or lead placed alongside of the type or form. This secures the type or form in the chase or upon the galley, and, when desired to unlock .the form or type, one of the journals is turned in the opposite direction, and the pinion upon the same revolving in that direction, and meshing into and engaging lwith and turning the other pinion upon the other journal, the plate A is withdrawn from its bearing against the sidestick, lead, or rule placed alongside of the type,'and the quoin may be removed from the chase or galley, or the form or type removed from the saine.

The quoin, made ot' metal, is more durable than the ordinary wooden one now in use, is readily adjusted, and which holds the form or types securely in position.

Having now set forth my invention, what I claim as new is A quoin composed of the plates A and B, combined with the hollow threaded journals U, having secured upon them the pinions D, and the threaded uprights E, operating substantially as and for the purpose specied.

WILLIAM QUAIL.

JOSEPH H. TOONE, A. SIDNEY DOANE. 

